Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/194208
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bernabeu Lorenzo, Manuel | - |
dc.contributor.author | Aznar Vicente, Sonia | - |
dc.contributor.author | Prieto Durán, Alejandro | - |
dc.contributor.author | Hüttener Queiroz, Mário | - |
dc.contributor.author | Juárez Giménez, Antonio | - |
dc.date.accessioned | 2023-02-27T14:40:29Z | - |
dc.date.available | 2023-02-27T14:40:29Z | - |
dc.date.issued | 2022-06-29 | - |
dc.identifier.issn | 2165-0497 | - |
dc.identifier.uri | http://hdl.handle.net/2445/194208 | - |
dc.description.abstract | Gene duplications significantly impact the gene repertoires of both eukaryotic and prokaryotic microorganisms. The genomes of pathogenic Escherichia coli strains share a group of duplicated genes whose function is mostly unknown. The irmA gene is one of the duplicates encoded in several pathogenic E. coli strains. The function of its gene product was investigated in the uropathogenic E. coli strain CFT073, which contains a single functional copy. The IrmA protein structure mimics that of human interleukin receptors and likely plays a role during infection. The enteroaggregative E. coli strain 042 contains two functional copies of the irmA gene. In the present work, we investigated their biological roles. The irmA_4509 allele is expressed under several growth conditions. Its expression is modulated by the global regulators OxyR and Hha, with optimal expression at 37°C and under nutritional stress conditions. Expression of the irmA_2244 allele can only be detected when the irmA_4509 allele is knocked out. Differences in the promoter regions of both alleles account for their differential expression. Our results show that under several environmental conditions, the expression of the IrmA protein in strain 042 is dictated by the irmA_4509 allele. The irmA_2244 allele appears to play a backup role to ensure IrmA expression when the irmA_4509 allele loses its function. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | American Society for Microbiology | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.1128/spectrum.00454-22 | - |
dc.relation.ispartof | Microbiology Spectrum, 2022, vol. 10, num. 4, p. e0045422 | - |
dc.relation.uri | https://doi.org/10.1128/spectrum.00454-22 | - |
dc.rights | cc-by (c) Bernabeu Lorenzo, Manuel et al., 2022 | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.source | Articles publicats en revistes (Genètica, Microbiologia i Estadística) | - |
dc.subject.classification | Escheríchia coli | - |
dc.subject.classification | Duplicació de l'ADN | - |
dc.subject.other | Escherichia coli | - |
dc.subject.other | DNA replication | - |
dc.title | Differential Expression of Two Copies of the irmA Gene in the Enteroaggregative E. coli Strain 042 | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 730024 | - |
dc.date.updated | 2023-02-27T14:40:29Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Genètica, Microbiologia i Estadística) Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC)) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
730024.pdf | 3.28 MB | Adobe PDF | View/Open |
This item is licensed under a
Creative Commons License